From patchwork Thu Aug 12 00:08:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sankeerth Billakanti X-Patchwork-Id: 12432117 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D8E5C4338F for ; Thu, 12 Aug 2021 00:14:59 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5892D6104F for ; Thu, 12 Aug 2021 00:14:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5892D6104F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DAEC66E207; Thu, 12 Aug 2021 00:14:56 +0000 (UTC) Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id BF66A6E203; Thu, 12 Aug 2021 00:14:54 +0000 (UTC) Received: from ironmsg-lv-alpha.qualcomm.com ([10.47.202.13]) by alexa-out.qualcomm.com with ESMTP; 11 Aug 2021 17:08:50 -0700 X-QCInternal: smtphost Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by ironmsg-lv-alpha.qualcomm.com with ESMTP/TLS/AES256-SHA; 11 Aug 2021 17:08:48 -0700 X-QCInternal: smtphost Received: from sbillaka-linux.qualcomm.com ([10.204.66.13]) by ironmsg01-blr.qualcomm.com with ESMTP; 12 Aug 2021 05:38:24 +0530 Received: by sbillaka-linux.qualcomm.com (Postfix, from userid 2305739) id 6A98E220EC; Thu, 12 Aug 2021 05:38:23 +0530 (IST) From: Sankeerth Billakanti To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: Sankeerth Billakanti , robdclark@gmail.com, seanpaul@chromium.org, swboyd@chromium.org, kalyan_t@codeaurora.org, abhinavk@codeaurora.org, dianders@chromium.org, khsieh@codeaurora.org, mkrishn@codeaurora.org Subject: [PATCH v1 1/2] drm/msm/dp: Add support for SC7280 eDP Date: Thu, 12 Aug 2021 05:38:01 +0530 Message-Id: <1628726882-27841-2-git-send-email-sbillaka@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1628726882-27841-1-git-send-email-sbillaka@codeaurora.org> References: <1628726882-27841-1-git-send-email-sbillaka@codeaurora.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The eDP controller on SC7280 is similar to the eDP/DP controllers supported by the current driver implementation. SC7280 supports one EDP and one DP controller which can operate concurrently. The following are some required changes for the sc7280 sink: 1. Additional gpio configuration for backlight and pwm via pmic. 2. ASSR support programming on the sink. 3. SSC support programming on the sink. Signed-off-by: Sankeerth Billakanti --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 4 ++-- drivers/gpu/drm/msm/dp/dp_ctrl.c | 19 +++++++++++++++ drivers/gpu/drm/msm/dp/dp_display.c | 32 ++++++++++++++++++++++++-- drivers/gpu/drm/msm/dp/dp_parser.c | 31 +++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_parser.h | 5 ++++ 5 files changed, 87 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c index b131fd37..1096c44 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c @@ -856,9 +856,9 @@ static const struct dpu_intf_cfg sm8150_intf[] = { }; static const struct dpu_intf_cfg sc7280_intf[] = { - INTF_BLK("intf_0", INTF_0, 0x34000, INTF_DP, 0, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR, 24, 25), + INTF_BLK("intf_0", INTF_0, 0x34000, INTF_DP, 1, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR, 24, 25), INTF_BLK("intf_1", INTF_1, 0x35000, INTF_DSI, 0, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR, 26, 27), - INTF_BLK("intf_5", INTF_5, 0x39000, INTF_EDP, 0, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR, 22, 23), + INTF_BLK("intf_5", INTF_5, 0x39000, INTF_DP, 0, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR, 22, 23), }; /************************************************************* diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index d2569da..06d5a2d 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1244,7 +1244,9 @@ static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl, struct dp_cr_status *cr, int *training_step) { int ret = 0; + u8 *dpcd = ctrl->panel->dpcd; u8 encoding = DP_SET_ANSI_8B10B; + u8 ssc = 0, assr = 0; struct dp_link_info link_info = {0}; dp_ctrl_config_ctrl(ctrl); @@ -1254,9 +1256,21 @@ static int dp_ctrl_link_train(struct dp_ctrl_private *ctrl, link_info.capabilities = DP_LINK_CAP_ENHANCED_FRAMING; dp_aux_link_configure(ctrl->aux, &link_info); + + if (dpcd[DP_MAX_DOWNSPREAD] & DP_MAX_DOWNSPREAD_0_5) { + ssc = DP_SPREAD_AMP_0_5; + drm_dp_dpcd_write(ctrl->aux, DP_DOWNSPREAD_CTRL, &ssc, 1); + } + drm_dp_dpcd_write(ctrl->aux, DP_MAIN_LINK_CHANNEL_CODING_SET, &encoding, 1); + if (dpcd[DP_EDP_CONFIGURATION_CAP] & DP_ALTERNATE_SCRAMBLER_RESET_CAP) { + assr = DP_ALTERNATE_SCRAMBLER_RESET_ENABLE; + drm_dp_dpcd_write(ctrl->aux, DP_EDP_CONFIGURATION_SET, + &assr, 1); + } + ret = dp_ctrl_link_train_1(ctrl, cr, training_step); if (ret) { DRM_ERROR("link training #1 failed. ret=%d\n", ret); @@ -1328,9 +1342,11 @@ static int dp_ctrl_enable_mainlink_clocks(struct dp_ctrl_private *ctrl) struct dp_io *dp_io = &ctrl->parser->io; struct phy *phy = dp_io->phy; struct phy_configure_opts_dp *opts_dp = &dp_io->phy_opts.dp; + u8 *dpcd = ctrl->panel->dpcd; opts_dp->lanes = ctrl->link->link_params.num_lanes; opts_dp->link_rate = ctrl->link->link_params.rate / 100; + opts_dp->ssc = dpcd[DP_MAX_DOWNSPREAD] & DP_MAX_DOWNSPREAD_0_5; dp_ctrl_set_clock_rate(ctrl, DP_CTRL_PM, "ctrl_link", ctrl->link->link_params.rate * 1000); @@ -1760,6 +1776,9 @@ int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl) ctrl->link->link_params.num_lanes = ctrl->panel->link_info.num_lanes; ctrl->dp_ctrl.pixel_rate = ctrl->panel->dp_mode.drm_mode.clock; + if (ctrl->dp_ctrl.pixel_rate == 0) + return -EINVAL; + DRM_DEBUG_DP("rate=%d, num_lanes=%d, pixel_rate=%d\n", ctrl->link->link_params.rate, ctrl->link->link_params.num_lanes, ctrl->dp_ctrl.pixel_rate); diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index ee5bf64..a772290 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -117,8 +117,36 @@ struct dp_display_private { struct dp_audio *audio; }; +struct msm_dp_config { + phys_addr_t io_start[3]; + size_t num_dp; +}; + +static const struct msm_dp_config sc7180_dp_cfg = { + .io_start = { 0x0ae90000 }, + .num_dp = 1, +}; + +static const struct msm_dp_config sc8180x_dp_cfg = { + .io_start = { 0xae90000, 0xae98000, 0 }, + .num_dp = 3, +}; + +static const struct msm_dp_config sc8180x_edp_cfg = { + .io_start = { 0, 0, 0xae9a000 }, + .num_dp = 3, +}; + +static const struct msm_dp_config sc7280_edp_cfg = { + .io_start = { 0xaea0000, 0 }, + .num_dp = 2, +}; + static const struct of_device_id dp_dt_match[] = { - {.compatible = "qcom,sc7180-dp"}, + { .compatible = "qcom,sc7180-dp", .data = &sc7180_dp_cfg }, + { .compatible = "qcom,sc8180x-dp", .data = &sc8180x_dp_cfg }, + { .compatible = "qcom,sc8180x-edp", .data = &sc8180x_edp_cfg }, + { .compatible = "qcom,sc7280-edp", .data = &sc7280_edp_cfg }, {} }; @@ -1408,7 +1436,7 @@ void msm_dp_irq_postinstall(struct msm_dp *dp_display) dp_hpd_event_setup(dp); - dp_add_event(dp, EV_HPD_INIT_SETUP, 0, 100); + dp_add_event(dp, EV_HPD_INIT_SETUP, 0, 1); } void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor) diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c b/drivers/gpu/drm/msm/dp/dp_parser.c index 0519dd3..c05fc0a 100644 --- a/drivers/gpu/drm/msm/dp/dp_parser.c +++ b/drivers/gpu/drm/msm/dp/dp_parser.c @@ -248,6 +248,33 @@ static int dp_parser_clock(struct dp_parser *parser) return 0; } +static int dp_parser_gpio(struct dp_parser *parser) +{ + struct device *dev = &parser->pdev->dev; + int ret; + + parser->panel_bklt_gpio = devm_gpiod_get(dev, "panel-bklt", + GPIOD_OUT_HIGH); + if (IS_ERR(parser->panel_bklt_gpio)) { + ret = PTR_ERR(parser->panel_bklt_gpio); + parser->panel_bklt_gpio = NULL; + DRM_ERROR("%s: cannot get panel-bklt gpio, %d\n", __func__, ret); + goto fail; + } + + parser->panel_pwm_gpio = devm_gpiod_get(dev, "panel-pwm", GPIOD_OUT_HIGH); + if (IS_ERR(parser->panel_pwm_gpio)) { + ret = PTR_ERR(parser->panel_pwm_gpio); + parser->panel_pwm_gpio = NULL; + DRM_ERROR("%s: cannot get panel-pwm gpio, %d\n", __func__, ret); + goto fail; + } + + DRM_INFO("gpio on"); +fail: + return 0; +} + static int dp_parser_parse(struct dp_parser *parser) { int rc = 0; @@ -269,6 +296,10 @@ static int dp_parser_parse(struct dp_parser *parser) if (rc) return rc; + rc = dp_parser_gpio(parser); + if (rc) + return rc; + /* Map the corresponding regulator information according to * version. Currently, since we only have one supported platform, * mapping the regulator directly. diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h b/drivers/gpu/drm/msm/dp/dp_parser.h index 34b4962..7e94bbf 100644 --- a/drivers/gpu/drm/msm/dp/dp_parser.h +++ b/drivers/gpu/drm/msm/dp/dp_parser.h @@ -9,6 +9,7 @@ #include #include #include +#include #include "dpu_io_util.h" #include "msm_drv.h" @@ -112,6 +113,10 @@ struct dp_parser { struct platform_device *pdev; struct dss_module_power mp[DP_MAX_PM]; struct dp_pinctrl pinctrl; + + struct gpio_desc *panel_bklt_gpio; + struct gpio_desc *panel_pwm_gpio; + struct dp_io io; struct dp_display_data disp_data; const struct dp_regulator_cfg *regulator_cfg;